Turin, Galleria Tucci Russo, Mario Merz, Architettura Fondata dal Tempo, Architettura Sfondata dal Tempo, 1981
New York, Sperone Westwater Fischer, Mario Merz, Prehistoric Winds from Icy Mountains, January - February 1982
Essen, Museum Folkwang; Stuttgart, Staatsgalerie Stuttgart, Mario Merz,1982
London, Anthony D'Offay Gallery, Mario Merz, February - March 1983
Champaign, Krannert Art Museum, New Paintings, November - February 1984
Chicago, Cultural Center of the Chicago Public Library, Contemporary Italian Masters, June - September 1984
New York, Solomon R. Guggenheim Museum, Mario Merz, A Retrospective, September - November 1989
Prato, Museo d'Arte Contemporanea, Mario Merz, Lo Spazio è Curvo o Diritto, May - September 1990
New York, Sperone Westwater Fischer, Mario Merz, Master Works, January - February 1992 Barcelona, Museum of Contemporary Art, Metafores del Real, November 1995 - February 1996
Siena, Palazzo delle Papesse, De Gustibus, Collezione Privata, March - May 2002
London, Istituto Italiano di Cultura, Mario Merz, March 2004